I-HydroxyPOpyl Methylcelceltulose i-Telulose ebalulekileyo ekufumaneni i-Ether isetyenziswe ngokubanzi kwimimandla emininzi yemizi-mveliso ngenxa yeepropathi zayo ezizodwa zomzimba kunye neekhemikhali. Iipropathi zayo zokundwendwela zenye yezona ndawo zibalulekileyo ze-HPMC, zichaphazela ngokuthe ngqo ukusebenza kwayo kwizicelo ezahlukeneyo.
1. Iipropathi ezisisiseko ze-HPMC
I-HPMC yi-Inser Sether Selete efunyenweyo ngokutshintsha inxenye yamaqela e-hydroxyl (-) kwimolekyuli ye-selselose esele amaqela (-och3) kunye ne-HYD2CH2CH (OH). Inamandla ngokufanelekileyo emanzini kunye nezinye izinyibilikisi zezinto eziphilayo, zenza isisombululo se-colloidal esibonakalayo. I-viscosity ye-HPMC igqitywe ikakhulu kukugula kwayo, isidanga sokufaka endaweni (DS, isidanga sokufaka endaweni) kunye nokusasazwa okukuko.
2. Ukuzimisela kwe-viscosity ye-HPMC
UVenkile weZilungithi ze-HPMC uhlala oqhele ukulinganiswa usebenzisa i-visment yokuhambisa amanzi okanye i-capillary vimer. Xa ukulinganisa, ingqalelo kufuneka ihlawulwe kuxinzelelo, ubushushu kunye nenqanaba lokucheba kwesisombululo, njengoko ezi zinto zinokuchaphazela kakhulu ixabiso le-viscofity.
Ukugxila kwesisombululo: UVenkile ye-HPMC unyuswa ngokunyuka kwesisombululo. Xa uxinzelelo lwesisombululo se-HPMC lisezantsi, unxibelelwano phakathi kweemolekyuli lubuthathaka kwaye i-viscosity iphantsi. Njengoko uxinzelelo luyenyuka, ukuntywila kunye nokunxibelelana phakathi kweemolekyuli kuyanda, kubangela ukwanda okukhulu kwi-viscofity.
Iqondo lokushisa: UVekyusi weZisombululo ze-HPMC unomdla kakhulu kubushushu. Ngokubanzi, njengoko iqondo lobushushu liyanda, ukubonakala kwesisombululo se-HPMC kuya kuncipha. Oku kungenxa yokwanda kwamaqondo obushushu okukhokelela ekunyukeni intshukumo yemolekyuli kunye nokudibana kwabantu abaninzi. Kuya kufuneka kuqatshelwe ukuba i-HPMC inamanqanaba ahlukeneyo okufaka indawo kunye nemolekyuli ineemvakalelo ezahlukeneyo zobushushu.
Ixabiso le-Shear: Izisombululo ze-HPMC ezibonisa i-pseudoplastic (i-Shear Timen) yokuziphatha, okt i-viscosity iphezulu kumaxabiso asezantsi asezantsi. Oku kuziphatha kungenxa yokufumana amandla e-Shear elungelelanisa imixokelelwane ye-shear, ngaloo ndlela kuncitshiswa iqabane kunye nokunxibelelana phakathi kweemolekyuli.
I-3. Izinto ezichaphazela i-HPMC Viscofity
Ubunzima bemolekyuli: Ubunzima be-molecular ye-HPMC yenye yezona zinto ziphambili ezimisela i-viscofity yalo. Ngokubanzi, okukhulu ubunzima bemolekyuli, ukuphakama kwe-viscosity yesisombululo. Kungenxa yokuba iimolekyuli ze-HPMC ezinobunzima bemolekyuli ephezulu kakhulu kunokwenzeka ukuba zenze iinethiwekhi ezivaliweyo, ngaloo ndlela zandisa ukuxabana kwangaphakathi kwesisombululo.
Isidanga sokufaka endaweni kunye nokuhanjiswa okukuko: Inani kunye nokusasazwa kwe-AFCHRISSY NOHWARISHiples kwi-HPMC ikwachaphazela i-viscofity. Ngokubanzi, inqanaba eliphezulu le-Acyaxy Sfacetions Ukuqaliswa kwempahla ye-hydroxypropy ye-hydroxypropy kuya kwandisa ukusebenzisana okungenasiphako, ngaloo ndlela kunyusa i-viscofity. Ukongeza, ukusasazwa okungafaniyo kwezinto ezinokuthatheka kunceda ekwenzeni inkqubo yesisombululo esizinzileyo kwaye kwandise i-viscosity yesisombululo.
Ixabiso lesisombululo: Nangona i-HPMC yi-polymer engeyiyo i-ionic kunye ne-viscofity yayo ayinantlonelo kwixabiso le-PH yesisombululo, i-abkaline eqaqambileyo okanye i-alkaline okanye i-alkaline okanye i-alkaline kakhulu I-HPMC, ngenxa yoko ichaphazela i-viscofity.
I-4. Imimandla ye-HPMC
Ngenxa yeempawu zayo ezintle, i-HPMC isetyenziswa ngokubanzi kumasimi amaninzi:
Izinto zokwakha: Kwizinto zokwakha, i-HPMC isetyenziswa njenge-tickener kunye nearhente yokugcina amanzi ukuphucula intsebenzo yokwakha kunye nokwandisa ukunganyangeki kwe-rack.
Umzi-mveliso wamachiza: Kumzi-mveliso wamayeza, i-HPMC isetyenziswa njenge-binder yeetafile, iarhente yefilimu yefilimu ye-capsules kunye ne-carriers yeziyobisi ezinzileyo.
Ishishini lokutya: I-HPMC isetyenziswa njengendawo enkulu kunye nokuzinza kumzi-mveliso wokutya wokuveliswa kwe-ice cream, iimveliso zobisi kunye neemveliso zobisi.
Iimveliso zemichiza zemichiza zemihla ngemihla, i-HPMC isetyenziswa njenge-thickener kunye nokuzinzisa kwimveliso ye-shampoo, ijeli yeshawari, njl.
Iimpawu ze-viscosity ze-HPMC sisiseko sokusebenza ngokugqibeleleyo kwizicelo ezahlukeneyo. Ngokulawula ubunzima bemolekyuli, isidanga sokufakwa endaweni, kunye neemeko zesisombululo ze-HPMC, uVenkile wayo unokuhlengahlengiswa ukufezekisa iimfuno ezahlukeneyo zesicelo. Kwixesha elizayo, kwixesha elinzulu kulwakhiwo lwe-HPMC Moleks kunye noVikosity kuya kunceda ukuphuhlisa iimveliso ze-HPMC ngentsebenzo engcono kwaye kwandisa ngakumbi amasimi ayo kwesicelo.
IXESHA LOKUQALA: UJUL-20-2024